Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin 4300V/220R-B509
Movement
Self-winding
Size
41.5 mm

Overview

A perpetual calendar built into the Overseas

The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin, reference 4300V/220R-B509, in 18K pink gold with a blue lacquered dial and a moon phase blending into its blue tone, on the pink gold bracelet. Self-winding calibre 1120 QP with a hand-read perpetual calendar and moon phase; 41.5 mm, 8.1 mm high, certified to the Hallmark of Geneva.

This execution is the same Overseas Perpetual Calendar Ultra-Thin case and calibre 1120 QP movement as the white gold reference, in 18K pink gold with a blue lacquered dial; the brand's own text says the moon-phase sky blends into the dial's blue tone. The bracelet and its triple folding clasp are pink gold, and the two extra straps supplied are dark blue calfskin leather and dark blue rubber.

The reference 4300V/220G is Vacheron Constantin's Overseas Perpetual Calendar Ultra-Thin, offered in 18K white and 18K pink gold with several dial colours, which the brand's page pairs a fine-watchmaking complication with the collection's sport-inspired case. The case is 41.5 mm across and 8.1 mm high, water-resistant to 50 m, with a transparent sapphire case back and an antimagnetic marking on it. Each dial carries a sunburst-finished centre and a velvet-textured minute track, a moon-phase display against a starry sky rendered in 18K gold with two gold moons; the hour-markers and hands are 18K gold, picked out in blue SuperLuminova®. The bracelet's links are shaped, on the brand's own account, to show the Maltese cross.

The self-winding calibre 1120 QP is Vacheron Constantin's ultra-thin base fitted with a perpetual calendar module: 29.6 mm across, 4.05 mm high, 276 parts and 36 jewels, running at 19,800 V.P.H. (2.75 Hz) with a stated 40-hour power reserve. The calendar is read entirely by hands -- day, month and a leap-year counter running to 48 months -- and the page states the display will read the correct date until the year 2100. The movement is certified to the Hallmark of Geneva; the brand's own account traces the mark to 1886, when the Republic and Canton of Geneva adopted it as their standard, tying it today to provenance and workmanship rather than one technical figure. The bracelet, closed by its own triple folding clasp in the case metal, can be swapped for two rubber straps supplied to match the dial, using a spare Ardillon buckle in the case metal.

For collectors

The page states this calendar will read correctly until 2100 -- a specific claim about the leap-year mechanism's range worth noting alongside the 48-month counter the Caliber tab names for it.

Key details

Case material18K pink gold
MovementCalibre 1120 QP, self-winding
CollectionOverseas

Design and engineering

  • Case and dial18K pink gold case, 41.5 mm across and 8.1 mm high, with a sunburst satin-finished blue lacquered dial and a velvet-finished outer minute track.
  • Moon phase and countersThe moon-phase display carries two gold moons against a sky which, on the brand's own account, blends into the dial's blue tone; the calendar's counters are snailed.
  • Perpetual calendarDay, month and a leap-year counter running to 48 months are read by hand, and the brand's page states the calendar will show the correct date until 2100.
  • Bracelet detailThe pink gold bracelet's links are shaped, on the brand's own account, to reveal the Maltese cross.
  • Interchangeable strapsThe pink gold bracelet, closed by its own pink gold triple folding clasp, can be swapped for a dark blue calfskin leather strap or a dark blue rubber strap, using a spare pink gold Ardillon buckle.
  • CertificationCertified to the Hallmark of Geneva.

Calibre 1120 QP

  • Self-winding, ultra-thin base with a perpetual calendar module
  • Perpetual calendar by hands: day, month, leap year (48-month counter), moon phase
  • 29.6 mm across, 4.05 mm high; 276 parts, 36 jewels
  • 19,800 V.P.H. (2.75 Hz)
  • Power reserve 40 hours
  • Hallmark of Geneva

Specifications

Technical specifications

Overseas Perpetual Calendar Ultra-Thin · Technical datasheet
Reference4300V/220R-B509
CollectionOverseas
CalibreCalibre 1120 QP
MovementSelf-winding
FunctionsHours, Minutes, Perpetual calendar by hands, Moon phase, Hand-type month, Leap year by 48 months counter, Hand-type day
Case dimensions41.5 mm
Case thickness8.1 mm
Case material18K pink gold
Case backTransparent sapphire crystal caseback
AntimagneticYes — “Antimagnetic” marking on the case back
Water resistance5 bar (50 m)
DialSunburst satin-finished lacquered blue dial and velvet-finished minutes track. 18K gold moons with a starry sky. Snailed counters. 18K gold applied hour/minute hands and hour-markers highlighted with blue SuperLuminova®.
Bracelet18K pink gold, polished and satin-finished
Interchangeable strapYes
Additional strapsGrained calfskin leather (Dark blue), Rubber (Dark blue), Ardillon buckle
Clasp18K pink gold triple folding clasp
Movement dimensions29.6 mm × 4.05 mm
Components276
Jewels36
Power reserve40 hours
Frequency19,800 vph (2.75 Hz)
CertificationHallmark of Geneva

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Overseas Perpetual Calendar Ultra-Thin · Ref. 4300V/220R-B509

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